$OPHT is one of biggest winner #stocks today. read more:

Ophthotech Corporation (symbol: OPHT) was one of the biggest winners of the
trading day today (2015-09-08), gaining 12.98%. The number of shares that
changed hands was 624,436, or about 1.5 times the average daily volume in
the stock.
The closing price was $49.43, amounting to a market cap of $1,720,000,000,
about -31.83% off the highest price in the last 12 months. The stock has
been trading at a range between $36.46 and $72.51.
OPHT is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2013.